Mike, I agree -- I can't image a situation where you would want to use IOPS provisioned by both the hypervisor and storage. There are two points of concern -- the UI and the management server. We have to ensure that the user can't create a VM from a compute/disk offering combination where hypervisor throttled I/O would contradict/conflict with storage provisioned IOPS. I think this functional conflict must be resolved in the management server to ensure that API calls are properly validated with a UX that avoids user confusion. Have Wei and you worked out an approach to resolving this conflict?
Thanks, -John On Jun 10, 2013, at 3:24 PM, Mike Tutkowski <mike.tutkow...@solidfire.com> wrote: > Wei has sent me the screen shots. > > I don't support Compute Offerings for 4.2, so that's not an issue here. > > I do support Disk Offerings. > > It looks like Wei has added four new fields to the Disk Offering. > > I have added three (Min, Max, and Burst IOPS). > > We just need to decide if we should toggle between his and mine. > > I doubt a user would want to use both features at the same time. > > > On Mon, Jun 10, 2013 at 12:30 PM, John Burwell <jburw...@basho.com> wrote: > >> Mike, >> >> Have Wei and you figured out the system level as well (e.g. allowing >> either storage provisioned IOPS or hypervisor throttling, but no both)? >> >> Thanks, >> -John >> >> On Jun 10, 2013, at 2:12 PM, Mike Tutkowski <mike.tutkow...@solidfire.com> >> wrote: >> >>> Perhaps Wei could send me some screen shots of what he's changed in the >> GUI >>> for his feature? >>> >>> Thanks! >>> >>> >>> On Mon, Jun 10, 2013 at 11:56 AM, John Burwell <jburw...@basho.com> >> wrote: >>> >>>> Wei, >>>> >>>> Have Mike Tutkowski and you reconciled the potential conflict between a >>>> throttled I/O VM and a provisioned IOPs volume? If so, what solution >> did >>>> you select? >>>> >>>> Thanks, >>>> -John >>>> >>>> On Jun 10, 2013, at 1:54 PM, Wei ZHOU <ustcweiz...@gmail.com> wrote: >>>> >>>>> Guys, >>>>> >>>>> I would like to merge disk_io_throttling branch into master. >>>>> Please review the code on https://reviews.apache.org/r/11782 >>>>> >>>>> If nobody object, I will merge into master in 72 hours. >>>>> >>>>> -Wei >>>>> >>>>> 2013/5/30 Wei ZHOU <ustcweiz...@gmail.com> >>>>> >>>>>> Hi, >>>>>> I would like to merge disk_io_throttling branch into master. >>>>>> If nobody object, I will merge into master in 48 hours. >>>>>> The purpose is : >>>>>> >>>>>> Virtual machines are running on the same storage device (local storage >>>> or >>>>>> share strage). Because of the rate limitation of device (such as >> iops), >>>> if >>>>>> one VM has large disk operation, it may affect the disk performance of >>>>>> other VMs running on the same storage device. >>>>>> It is neccesary to set the maximum rate and limit the disk I/O of VMs. >>>>>> >>>>>> The feature includes: >>>>>> >>>>>> (1) set the maximum rate of VMs (in disk_offering, and global >>>>>> configuration) >>>>>> (2) change the maximum rate of VMs >>>>>> (3) limit the disk rate (total bps and iops) >>>>>> JIRA ticket: https://issues.apache.org/jira/browse/CLOUDSTACK-1192 >>>>>> FS (I will update later) : >>>>>> >>>> >> https://cwiki.apache.org/confluence/display/CLOUDSTACK/VM+Disk+IO+Throttling >>>>>> Merge check list :- >>>>>> >>>>>> * Did you check the branch's RAT execution success? >>>>>> Yes >>>>>> >>>>>> * Are there new dependencies introduced? >>>>>> No >>>>>> >>>>>> * What automated testing (unit and integration) is included in the new >>>>>> feature? >>>>>> Unit tests are added. >>>>>> >>>>>> * What testing has been done to check for potential regressions? >>>>>> (1) set the bytes rate and IOPS rate on CloudStack UI. >>>>>> (2) VM operations, including >>>>>> deploy, stop, start, reboot, destroy, expunge. migrate, restore >>>>>> (3) Volume operations, including >>>>>> Attach, Detach >>>>>> >>>>>> To review the code, you can try >>>>>> git diff c30057635d04a2396f84c588127d7ebe42e503a7 >>>>>> f2e5591b710d04cc86815044f5823e73a4a58944 >>>>>> >>>>>> Best regards, >>>>>> Wei >>>>>> >>>>>> [1] >>>>>> >>>> >> https://cwiki.apache.org/confluence/display/CLOUDSTACK/VM+Disk+IO+Throttling >>>>>> [2] refs/heads/disk_io_throttling >>>>>> [3] https://issues.apache.org/jira/browse/CLOUDSTACK-1301< >>>> https://issues.apache.org/jira/browse/CLOUDSTACK-2071>(CLOUDSTACK-1301 >> - >>>> VM Disk I/O Throttling) >>>>>> >>>> >>>> >>> >>> >>> -- >>> *Mike Tutkowski* >>> *Senior CloudStack Developer, SolidFire Inc.* >>> e: mike.tutkow...@solidfire.com >>> o: 303.746.7302 >>> Advancing the way the world uses the >>> cloud<http://solidfire.com/solution/overview/?video=play> >>> *™* >> >> > > > -- > *Mike Tutkowski* > *Senior CloudStack Developer, SolidFire Inc.* > e: mike.tutkow...@solidfire.com > o: 303.746.7302 > Advancing the way the world uses the > cloud<http://solidfire.com/solution/overview/?video=play> > *™*
